How April Fool’s day begin?

A kind of statement thinks this festival comes from Annotating Vulgar Festival of India. This section provides that an annual festival on this day March 31, regardless of gender of age, people can be inter-joke with each other to fool deception in exchange for entertainment.

More popular statement thinks this festival comes from France. In 1564, France's first new reform law -- Gerry Calendar Li (i.e., the current generic sun) to regulate January 1 as the start of a New Year, changing the old calendar of taking April 1 as New Year start. In the process of putting forward new calendar, some conservative people are against to reform.

On April 1, they continue exchanging presents and celebrating New Year. People, who advocate reform poke fun at them, give fake presents and welcome them to fake celebration party. And they call fooled person “April fool” or “Baited fish”. After then, it gradually becomes a fashion custom in France for people to fool each other on the day. Early 18th century, the festival was brought to Britain and then to United States by Britain's early immigrants. At first, any American can fabricate shocking news and is free from moral and legal responsibility. On the contrary, whose lie is weirder but more capable of defrauding someone wins. But meanwhile, it brings social disruption and cause many discontents. So nowadays, during the festival, people won’t go too far but for fun.